For a workload that can tolerate interruptions, which Amazon EC2 purchasing option provides the LARGEST discount compared to On-Demand pricing?

Spot Instances provide the largest discount (up to 90% off On-Demand prices) because they allow you to bid on unused EC2 capacity. AWS can reclaim these instances with a two-minute notification if the capacity is needed elsewhere, making them suitable for fault-tolerant or flexible workloads. Convertible Reserved Instances offer significant discounts (up to 54%) but are for a committed term (1 or 3 years) and can be exchanged for other instance types. Standard Reserved Instances offer even higher discounts (up to 72%) for a fixed instance family, type, and region, also for a committed term. Dedicated Hosts provide physical servers for your exclusive use, offering some cost savings compared to On-Demand for specific licensing needs but are generally more expensive than other options and not designed for maximum discount.